Rob Kardashian Is 'So Happy' Blac Chyna and Kylie Jenner Have Made 'Peace'

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It appears the Kardashian-Jenner clan is one big happy family again.

Rob Kardashian's fiancee, Blac Chyna, and his 18-year-old sister, Kylie Jenner, surprised fans on Thursday when they started posing for selfies together and shared them on Snapchat. Needless to say, the 29-year-old reality star was thrilled that the two were hanging out.

WATCH: Blac Chyna Totally Shades Kylie Jenner Over New Cooking Show -- See the Passive-Aggressive Post

"So happy my girls finally got to talk and make peace! #MyFamily #AllLove," Kardashian captioned an Instagram photo of Jenner and Chyna on Friday.

The youngest Jenner sister and the 27-year-old model have been thought to be at odds with each other ever since Jenner started dating Tyga, Chyna's former fiance and father to her son.

However, on Thursday, the 18-year-old Keeping Up With the Kardashians star captioned their Snapchat pic with the message: "When we've been best friends the whole time."

MORE: Is Blac Chyna Taking the 'Kylie Jenner Challenge'?

Chyna also shared a similar snap to her account, writing: "Hanging out with my lil sis."

Back in January, a source close to Kardashian told ET that Jenner would eventually "get over" her outrage over her brother's relationship her boyfriend's ex.

"Yes, Kylie feels betrayed, but she also doesn't see the need to publicly taunt him," the source said at the time. "If this relationship is good for Rob, even if it's temporary, then Kylie is not going to push it."

WATCH: Rob Kardashian Calls Blac Chyna His 'Beautiful Wife' After Buying Her a Lamborghini

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